I am looking for an aeronautical structure engineer able to modify a existing design of fixed wings drone.
The existing is 3 meters span Vtail with a10kg MTOW 10kg, cruise speed of 100km/h and stall 45km/h.
We need to increase MTOW to 23,5kg and reduce stall speed as low as 25km/h; with a cruising speed of 40 to 70km/h.
Engine configuration must be from simple pull to a push pull configuration in order to get engine redundancy.
Wind tunnel simulation must be done in order to prove performances met.